Regarding grains, phytic acid is the problem. I no longer eat shop bought bread or anything containing flour.
I make my own bread from a mixture of wheat/rye/spelt and barley, the grains are soaked overnight and then sprouted, when the little tails are just showing i put it through an auger...
Think screw jacks, the smaller ones a very similar to one of the apprenticeship training jobs we had to make when i started at Vickers Armstrong shipbuilders. a long long time ago
Welcome to the forum Wofgang
I am in the UK, have an Emcomat 7 that i bought new 50 year ago, just got mine running again after a motor failure, was lucky enough to find a 440V three phase motor on ebay(Netherlands) the difference is night and day compared to the old motor.
Enjoy the forum.